An open label, balanced, randomized, two-treatment, two-period, two-sequence, single-dose, crossover, bioequivalence study comparing Tamsulosin Hydrochloride Capsules USP 0.4 mg, manufactured by Sun Pharmaceutical Industries Limited, India with Tamsulosin Hydrochloride extended-release capsules 0.4 mg, Product of Geolab Indústria Farmacêutica S/A, VP. 1B QD.08-B Modules 01 to 08, DAIA - Anápolis – GO, in healthy adult, human male subjects under fasting condition.